Atmel Evaluation Kit AT91SAM9G25-EK AT91SAM9G25-EK データシート
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製品コード
AT91SAM9G25-EK
923
SAM9G25 [DATASHEET]
11032D–ATARM–10-Mar-2014
40.7.14 ADC Extended Mode Register
Name:
ADC_EMR
Address:
0xF804C040
Access:
Read-write
This register can only be written if the WPEN bit is cleared in
.
• CMPMODE: Comparison Mode
• CMPSEL: Comparison Selected Channel
If CMPALL = 0: CMPSEL indicates which channel has to be compared.
If CMPALL = 1: No effect.
• CMPALL: Compare All Channels
0 = Only channel indicated in CMPSEL field is compared.
1 = All channels are compared.
• CMPFILTER: Compare Event Filtering
Number of consecutive compare events necessary to raise the flag = CMPFILTER+1
When programmed to 0, the flag rises as soon as an event occurs.
• TAG: TAG of the ADC_LDCR register
0 = Sets CHNB to zero in ADC_LDCR.
1 = Appends the channel number to the conversion result in ADC_LDCR register.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
TAG
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
–
–
CMPFILTER
–
–
CMPALL
–
7
6
5
4
3
2
1
0
CMPSEL
–
–
CMPMODE
Value
Name
Description
0
LOW
Generates an event when the converted data is lower than the low threshold of the window.
1
HIGH
Generates an event when the converted data is higher than the high threshold of the window.
2
IN
Generates an event when the converted data is in the comparison window.
3
OUT
Generates an event when the converted data is out of the comparison window.